user/sven/linux.git/drivers, branch v4.9.5

pinctrl: sh-pfc: Do not unconditionally support PIN_CONFIG_BIAS_DISABLE

2017-01-19T19:18:08Z

commit 5d7400c4acbf7fe633a976a89ee845f7333de3e4 upstream. Always stating PIN_CONFIG_BIAS_DISABLE is supported gives untrue output when examining /sys/kernel/debug/pinctrl/e6060000.pfc/pinconf-pins if the operation get_bias() is implemented but the pin is not handled by the get_bias() implementation. In that case the output will state that "input bias disabled" indicating that this pin has bias control support. Make support for PIN_CONFIG_BIAS_DISABLE depend on that the pin either supports SH_PFC_PIN_CFG_PULL_UP or SH_PFC_PIN_CFG_PULL_DOWN. This also solves the issue where SoC specific implementations print error messages if their particular implementation of {set,get}_bias() is called with a pin it does not know about. Signed-off-by: Niklas Söderlund Acked-by: Laurent Pinchart Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman

bus: vexpress-config: fix device reference leak

2017-01-19T19:18:07Z

commit c090959b9dd8c87703e275079aa4b4a824ba3f8e upstream. Make sure to drop the reference to the parent device taken by class_find_device() after populating the bus. Fixes: 3b9334ac835b ("mfd: vexpress: Convert custom func API to regmap") Acked-by: Sudeep Holla Signed-off-by: Johan Hovold Signed-off-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman

power: supply: bq27xxx_battery: Fix register map for BQ27510 and BQ27520

2017-01-19T19:18:07Z

commit 3bee9ea1de687925d116670f036599cbed8b66b0 upstream. The BQ27510 and BQ27520 use a slightly different register map than the BQ27500, add a new type enum and add these gauges to it. Fixes: d74534c27775 ("power: bq27xxx_battery: Add support for additional bq27xxx family devices") Based-on-patch-by: Kenneth R. Crudup Signed-off-by: Andrew F. Davis Signed-off-by: Sebastian Reichel Signed-off-by: Greg Kroah-Hartman

bq24190_charger: Fix PM runtime use for bq24190_battery_set_property

2017-01-19T19:18:07Z

commit 075eb5719d53e8bb4a406ad87e1de99319aa50f0 upstream. There's a typo, it should do pm_runtime_get_sync, not put. Fixes: d7bf353fd0aa3 ("bq24190_charger: Add support for TI BQ24190 Battery Charger") Cc: Mark A. Greer Signed-off-by: Tony Lindgren Reviewed-by: Mark Greer Signed-off-by: Sebastian Reichel Signed-off-by: Greg Kroah-Hartman

iw_cxgb4: Fix error return code in c4iw_rdev_open()

2017-01-19T19:18:07Z

commit 15f7e3c21b76598bc6e5816d2577ce843b2b963f upstream. Fix to return error code -ENOMEM from the __get_free_page() error handling case instead of 0, as done elsewhere in this function. Fixes: 05eb23893c2c ("cxgb4/iw_cxgb4: Doorbell Drop Avoidance Bug Fixes") Signed-off-by: Wei Yongjun Acked-by: Steve Wise Signed-off-by: Doug Ledford Signed-off-by: Greg Kroah-Hartman

powercap/intel_rapl: fix and tidy up error handling

2017-01-19T19:18:07Z

commit cb43f81b8489dcb87555e16c17453f0a9fa690f2 upstream. Commit e1399ba20eee ("powercap / RAPL: handle missing MSRs") added contraint_to_pl() function to return index into an array. But it can potentially return -EINVAL if powercap layer sends an out of range constraint ID. This patch adds sanity check. Unnecessary RAPL domain pointer check is removed since it must be initialized before calling rapl_unit_xlate(). Fixes: e1399ba20eee ("powercap / RAPL: handle missing MSRs") Reported-by: Odzioba, Lukasz Reported-by: Koss, Marcin Signed-off-by: Jacob Pan Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman

ACPI / APEI: Fix NMI notification handling

2017-01-19T19:18:07Z

commit a545715d2dae8d071c5b06af947b07ffa846b288 upstream. When removing and adding cpu 0 on a system with GHES NMI the following stack trace is seen when re-adding the cpu: WARNING: CPU: 0 PID: 0 at arch/x86/kernel/apic/apic.c:1349 setup_local_APIC+ Modules linked in: nfsv3 rpcsec_gss_krb5 nfsv4 nfs fscache coretemp intel_ra CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.0-rc6+ #2 Call Trace: dump_stack+0x63/0x8e __warn+0xd1/0xf0 warn_slowpath_null+0x1d/0x20 setup_local_APIC+0x275/0x370 apic_ap_setup+0xe/0x20 start_secondary+0x48/0x180 set_init_arg+0x55/0x55 early_idt_handler_array+0x120/0x120 x86_64_start_reservations+0x2a/0x2c x86_64_start_kernel+0x13d/0x14c During the cpu bringup, wakeup_cpu_via_init_nmi() is called and issues an NMI on CPU 0. The GHES NMI handler, ghes_notify_nmi() runs the ghes_proc_irq_work work queue which ends up setting IRQ_WORK_VECTOR (0xf6). The "faulty" IR line set at arch/x86/kernel/apic/apic.c:1349 is also 0xf6 (specifically APIC IRR for irqs 255 to 224 is 0x400000) which confirms that something has set the IRQ_WORK_VECTOR line prior to the APIC being initialized. Commit 2383844d4850 ("GHES: Elliminate double-loop in the NMI handler") incorrectly modified the behavior such that the handler returns NMI_HANDLED only if an error was processed, and incorrectly runs the ghes work queue for every NMI. This patch modifies the ghes_proc_irq_work() to run as it did prior to 2383844d4850 ("GHES: Elliminate double-loop in the NMI handler") by properly returning NMI_HANDLED and only calling the work queue if NMI_HANDLED has been set. Fixes: 2383844d4850 (GHES: Elliminate double-loop in the NMI handler) Signed-off-by: Prarit Bhargava Reviewed-by: Borislav Petkov Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman

ACPI / CPPC: set an error code on probe error path

2017-01-19T19:18:07Z

commit 501634759d55a5b56967de6d9465acf02bbc3565 upstream. We should return -EINVAL (instead of 0) if get_cpu_device() fails. Fixes: 158c998ea44b (ACPI / CPPC: add sysfs support to compute delivered performance) Signed-off-by: Dan Carpenter Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman

regulators: helpers: Fix handling of bypass_val_on in get_bypass_regmap

2017-01-19T19:18:06Z

commit 85b037442e3f0e84296ab1010fd6b057eee18496 upstream. The handling of bypass_val_on that was added in regulator_get_bypass_regmap is done unconditionally however several drivers don't define a value for bypass_val_on. This results in those drivers reporting bypass being enabled when it is not. In regulator_set_bypass_regmap we use bypass_mask if bypass_val_on is zero. This patch adds similar handling in regulator_get_bypass_regmap. Fixes: commit dd1a571daee7 ("regulator: helpers: Ensure bypass register field matches ON value") Signed-off-by: Charles Keepax Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman

cpufreq: powernv: Disable preemption while checking CPU throttling state

2017-01-19T19:18:06Z

commit 8a10c06a20ec8097a68fd7a4a1c0e285095b4d2f upstream. With preemption turned on we can read incorrect throttling state while being switched to CPU on a different chip. BUG: using smp_processor_id() in preemptible [00000000] code: cat/7343 caller is .powernv_cpufreq_throttle_check+0x2c/0x710 CPU: 13 PID: 7343 Comm: cat Not tainted 4.8.0-rc5-dirty #1 Call Trace: [c0000007d25b75b0] [c000000000971378] .dump_stack+0xe4/0x150 (unreliable) [c0000007d25b7640] [c0000000005162e4] .check_preemption_disabled+0x134/0x150 [c0000007d25b76e0] [c0000000007b63ac] .powernv_cpufreq_throttle_check+0x2c/0x710 [c0000007d25b7790] [c0000000007b6d18] .powernv_cpufreq_target_index+0x288/0x360 [c0000007d25b7870] [c0000000007acee4] .__cpufreq_driver_target+0x394/0x8c0 [c0000007d25b7920] [c0000000007b22ac] .cpufreq_set+0x7c/0xd0 [c0000007d25b79b0] [c0000000007adf50] .store_scaling_setspeed+0x80/0xc0 [c0000007d25b7a40] [c0000000007ae270] .store+0xa0/0x100 [c0000007d25b7ae0] [c0000000003566e8] .sysfs_kf_write+0x88/0xb0 [c0000007d25b7b70] [c0000000003553b8] .kernfs_fop_write+0x178/0x260 [c0000007d25b7c10] [c0000000002ac3cc] .__vfs_write+0x3c/0x1c0 [c0000007d25b7cf0] [c0000000002ad584] .vfs_write+0xc4/0x230 [c0000007d25b7d90] [c0000000002aeef8] .SyS_write+0x58/0x100 [c0000007d25b7e30] [c00000000000bfec] system_call+0x38/0xfc Fixes: 09a972d16209 (cpufreq: powernv: Report cpu frequency throttling) Reviewed-by: Gautham R. Shenoy Signed-off-by: Denis Kirjanov Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman